Re: [PATCH 1/2] xen/netfront: set default upper limit of tx/rx queues to 8

2017-01-10 Thread Juergen Gross
On 10/01/17 15:53, Boris Ostrovsky wrote: > On 01/10/2017 08:32 AM, Juergen Gross wrote: >> The default for the number of tx/rx queues of one interface is the >> number of vcpus of the system today. As each queue pair reserves 512 >> grant pages this default consumes a ridiculous number of grants f

Re: [PATCH 1/2] xen/netfront: set default upper limit of tx/rx queues to 8

2017-01-10 Thread Boris Ostrovsky
On 01/10/2017 08:32 AM, Juergen Gross wrote: > The default for the number of tx/rx queues of one interface is the > number of vcpus of the system today. As each queue pair reserves 512 > grant pages this default consumes a ridiculous number of grants for > large guests. > > Limit the queue number t

[PATCH 1/2] xen/netfront: set default upper limit of tx/rx queues to 8

2017-01-10 Thread Juergen Gross
The default for the number of tx/rx queues of one interface is the number of vcpus of the system today. As each queue pair reserves 512 grant pages this default consumes a ridiculous number of grants for large guests. Limit the queue number to 8 as default. This value can be modified via a module